Customizable things like WordPress themes and color settings on TweetDeck are always nice. Grain, a design studio based in Washington, took that idea of customization and applied it the Ty D.I.Y. Edition, a shower curtain set that provides a blank shower curtain as a “canvas” where you can draw your own custom designs on. The shower curtain is durable, recyclable, machine-washable, and more resistant to mildew. Unlike other typical shower curtains, it isn’t made with PVC, a hazardous consumer material that releases poisonous chemicals.